In Huygen’s eyepiece
|
a) |
The cross wires are outside the eyepiece |
|
b) |
Condition for achromatism is satisfied |
|
c) |
Condition for minimum spherical aberration is not satisfied |
|
d) |
The image formed by the objective is a virtual image |
In Huygen’s eyepiece
|
a) |
The cross wires are outside the eyepiece |
|
b) |
Condition for achromatism is satisfied |
|
c) |
Condition for minimum spherical aberration is not satisfied |
|
d) |
The image formed by the objective is a virtual image |
|
(b) Huygen eyepiece satisfies the conditions for elimination of the chromatic aberration as well as spherical aberration. |